Brilliant! I remember thinking about this problem a few years back: what stops miners of a blockchain just ignoring transactions/anything from certain entities. So it's good that there exists a way to track such behaviour, if it is occurring.
TBH I probably find myself spending about an hour+ a day just thinking. I'm not sure that that, in the isolated pandemic situation we are in now, is the best thing for Mental Health or celebratory. It depends on the person. If you've been talking to people all day, an hour+ just thinking to yourself can obviously be excellent and useful and allow you to process stuff. But if you're lonely, you're not going to be wanting to do that: thoughts will often be unhelpful or negative and you would almost literally be better off not thinking them.
When I was happier pre-pandemic, thinking to myself would be great. When I was 17 doing my first philosophy classes my head would just be abuzz with questions, e.g I'd be in a corner store and be almost stuck there for 5m thinking about what Plato/Aristotle would think about me buying a bar of chocolate that I didn't necessarily need.
Not to digress, but I imagine further that it's dependent on your occupation and life. If you're doing menial 9-5 stuff, you're obviously not going to be thinking heavily about job related stuff and will be too tired to consider questions. If you've just started a start-up however, your mind will continuously be abuzz (hopefully) thinking about what you're gonna do etc etc.